Objectives

The Hazard and Operability (HAZOP) Study is a formal review of a process, its equipment, and its operation in order to identify potential hazards and operational problems. The HAZOP study assists in reducing the hazards at a facility and minimises the likelihood of commissioning delays or malfunctioning of the facility.

The purpose of this course is to provide the required knowledge to carry out a HAZOP study for an industrial facility at any phase of its life cycle, and to understand how to reduce or eliminate the identified risks concluded by the study.

Duration

Five Days

Course Content

First Day

• Introductions and definition of HAZOP Study
• Why risk assessment is required for:
  • A facility at the design stage(s)
  • An operating facility
  • A facility prior to any upgrading or modification
• Concepts, objectives, and goals of a HAZOP study
• Who conducts and participates in the study, and under what organisation?
• Selection of the study team leader and members
• Who decides that a HAZOP study is required and when?
• Requirements to initiate a HAZOP study and responsible parties
• Definition of a HAZOP Session, its organisation, and functional responsibilities

Second Day

• HAZOP Methodology
• Requirements to undertake a HAZOP study: preparation and documentation
• Overall review of the HAZOP process and step-by-step session procedures
• Definition and use of guide words to identify possible risks
• Types of HAZOP studies
• Required documents and drawings for conducting the study and the basis for selection
• Definition of “Node”, selection criteria, and examination sequence
• Use of guide words to identify risks and deviations
• For each defined deviation:
  • Possible causes
  • Consequences
  • Available safeguards
• Actions required to eliminate or reduce identified risks
• Assignment of responsibilities for implementing the actions
• Analysis and documentation of HAZOP study findings
• Work sheet structure and content
• Actions arising from the HAZOP session
• Action Sheet: contents, completion, and distribution
• HAZOP Study Report: structure, authorship, and distribution
• Issuing and following up on Action Sheets
• Response Sheet: purpose, responsibility, and submission process
• HAZOP Action Closeout: decision-making and reporting process
• Contents and authorship of the HAZOP Closeout Report

Fourth and Fifth Days: HAZOP Sessions

• Practical HAZOP sessions using P&ID’s of various facility types and project phases
• Practice the complete HAZOP study process:
  • Definition of objectives
  • Verification of document suitability
  • Definition of nodes and guide words
  • Brainstorming to identify hazards, possible failures, causes, and consequences
  • Propose, discuss, and select remedial actions
  • Assign responsibilities for implementing actions
  • Complete work sheets and generate action sheets
  • Classroom debates to determine the final content of the HAZOP Report